Swing-motion truck.



No. 674,225. Pat ented May l4, l90l.

.1. TAYLOR. SWING MOTION TRUCK.

. (Application filed Feb. 1, 1901.1 (No Model.) 4 Shasta-Shae! l,

INVENTOR. Jo/zm Z:

Allarnej s v L l I i I H I J. TAYLOR. SWING MOTION TRUCK.

(Application filed Feb. 1, 1901.)

Patented May l4, I90l.

4 She'ets Slret 2.

' No. 674,225. Patented May l4, I90l.

J. TAYLOR.

SWING MOTION T RUCK.-

(Application filed' Feb; 1, 1901. (No Model.) 4 Sheets-18mm 3.

INVENTOR J. TAYLOR.

SWING MOTION TRUCK.

A nmion filed Feb. 1, 1901. (No Model.) 4 Sheets-Sheet 4.

Nq. 674,225. Patented May 14, l90l.

lWii iu nimmimllilmaa [ill' INVENTOR. A?! I John 107 i r 1 I I Atlorne A.

UNITED STATES PATENT OFFICE.

JOHN TAYLOR, OF TROY, NEW YORK.

SWING-MOTION TRUCK.

SPECIFICATION forming part of Letters Patent N 0. 674,225, dated May 14, 1901.

Application fil d February 1, 1901. Serial No. 45,637. \llo model.)

To all whom it may concern.-

Be it known that I, JOHN TAYLOR, of Troy, in the county of Rensselaer and State of New York, have invented certain new and useful Improvements in Swing-Motion Trucks; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification.

Thisinvention is an improvement in short wheel-base swing-motion trucks especially designed for electric street-railway service,j

two of such trucks being usually employed under each car.

The present invention relates particularly to the manner of hanging the swinging bolster on the truck-frame by means of swinging supports carrying the springs, the construction being such that the use of or necessity for what is ordinarily known as a springplank is avoided, the springs being supported directly upon the hangers and thebolster itself forming the tie between the hangers.

The invention will be illustrated in the accompanying drawings and fully understood from the following description taken in connection therewith.

In said drawings, Figure 1 is a side eleva tion of the truck, and Fig. 2 a transverse section on line 2 2, Fig. 1. Fig. 3is a plan iew of the complete truck, and Fig. dis a detail longitudinal section on line 4 4, Fig. 3. Fig 5 is an enlarged section through the hangercasting and spring-supports. Fig. 6 is a detail showing how the springs may be arrangedin line with the truck-bolster. Figs. 7, 8, 9, and 10 show various ways of attaching the swing-hangers to thehanger-castings. Figs. 11 and 12 show how a single coil-spring can be used. Figs. 13 and 14 show other modifications of the manner of attaching the hangers to the hanger-castings. Fig. 15 is a top plan view of the hanger-casting. Fig. 16 is'a detail side elevation showing how the side of the frame may be made of one malleable casting. Fig. 17 is a top plan view of Fig. 16.

The truck is constructed with four malleable or steel pedestals A, the pedestals at the same side of the truck being connected at top by two parallel bars B, set edgewise and secured to suitable recesses in the inner and outer sides of the jaws of the pedestals, as shown at a, and they are connected below the bars B by a single transverse bar 0, whose ends are fitted in sockets a in the pedestals, and said bars O are also arranged vertically edgewise, but are bent so that their central portions shall lie fiatwise, as shown at o, for the purpose of giving more room for the accom modation of the swinging hangers I, hereinafter referred to, thus permitting longer springs to be used. The opposite pedestals A at each end of the truck are connected by stout metal end bars D, set vertically edgewise and rigidly secu red to extensions A of the pedestals. The contour of these end bars D is such as will best adapt the truck to receive the motor which it is desired to use, the motors being hung between the end bars D and the adjoining axles instead of between the axles. I

The pedestals A are fitted over the journal-boxes E of the axles as usual, springs e being interposed between the journal-boxes and the upper ends of the pedestals, so as to cushion the truck-frame upon the axles. The lower ends of the jaws of the pedestals are connected by short bars A the ends of which are fitted into rabbets or recesses a in the jaws and secured thereto by bolts or rivets a as shown, to prevent spreading of the jaws. Between the bars B B and located centrally between the adjoining pedestals at each side of the truck are hanger-castings F, which are preferably lipped over the upper edges of the bars B to relieve their securing-bolts of strain, and to the inner face of the inner'bars B and located centrally between the adjoining pedestals A are fastened bolster-guide castings G, provided with inwardly-projecting end lugs g, to which are fastened the ends of transverse tie-bars H, by which means the truck-frame is centrally stayed and lateral spreading thereof prevented.

The hanger-castings F are provided with vertical conical openings f, through which pass the ends of U shaped hangers I I, which are secured thereto by means of nut t', which are preferably convex on their under sides and adapted to fit in concaved recesses f at the upper ends of openings f, thus permitting the hangers I to swing freely laterally of the truck-frame.

Hung on each hanger I is a malleable gray or steel casting J, provided with openings j for the passage of the legs of the hanger and provided with longituninal lips j on its under side to receive between them the lower member of the hanger. This casting J forms a spring-step and supports the bolster-springs, which are preferably compound coiled springs K, a set of such springs being strung on each member of the hanger-I. Above these springs and resting thereon is a cap-casting L, provided with openings Z for the passage of the limbs of the hanger, and said casting forms both a spring-cap and bolster-seat, the ends of the bolster M being fastened thereto, as indicated in the drawings. The bolster thus forms a tie or bond between the opposite hangers l and prevents their independent or unequal movement, the bolster thus performing the duty of a spring'seat bar. This bolster M is preferably trussed and formed of a lower fiat bar 071. and upper inverted trussbar on, which are united by a central casting m and the bolster is provided with the usual center plate and bolts by which the car-bodies are connected to and supported on the bolster. The bolster 1W1 lies between the tie-bars H H, and is thereby prevented from displacement longitudinally of the truck; but the bolster is longer than said bars H and extends underneath the top members ofthe side frame and has a longitudinal movement therebetween transversely or laterally of the truck, according to the position assumed by the swinging hangers I. Side hearings or rubbing-plates N are attached to the bolster M, near the end thereof, and project above the bars H. By this construction I obtain a very short wheelbase truck "which can swing around very short radii curves without interfering with the side steps on open cars, and the car-bodies can also be carried thereon very low down, so that only one step need be used. The single bottom bar pocketed in the jaws at each end and twisted in the center forms a solid trussbar and allows the use of long hangers, affording ample room for the reception of large and lengthy springs.

Fig. '7 shows a swing-hanger with a nut having a concave base resting on a convex surface in the casting and also how an elliptic spring could be substituted for a coiled sprin Fig. b shows the swing-hanger made with an eye i on each end to receive a short pin 73, (see Fig. 10,) fitting into pockets f in the hanger-casting to prevent the pins working endwise.

In Fig. 13 is shown a single pin passing through both eyes. Where this long pin is employed the center bolt could be omitted from the hanger-casting.

Fig. 9 shows a llangevcasting provided with depending ears F to receive the ends of the bail-hangers, which are provided with eyes i and secured to the ears either by means of short or long pins. As shown in Fig. 15, the holes f in the casting F are made oblong only on the outer side and lower ends to permit the bail-hangers to swing out. The bail-hangers on the opposite sides, being coupled together by the bolster, are held outward at an angle from the frame, and the bail-hanger at the outer side of the curve will swing from an angle to a perpendicular. For this reason it is necessary to make the holes oblong on one side only.

Fig. 11 shows how a single spiral spring may be carried by the swing-hangers, the spring base and cap being modified accordingly; and Fig. 12 is a top plan of the parts shown in Fig. 11.

Fig. 14 shows how the hangers may be sus pended from the castings by means of conical-ended nuts.

Figs. 16 and 17 show a side elevation and a plan of a east side frame for the truck. This side frame may be made of malleable iron or steel and embodies in one piece thetwo pedestals A which are connected by a top memher A and bottom member A The pedestals A are practically similar in shape to those already described. Bar A is provided with openings for the reception of the hangers, as shown at a and bottom bar A is dropped, as shown at a, to permit the use of the swing hangers. The various modifications of swinghangers and springs shown in the drawings and heretofore described are applicable to a truck constructed with these east side frames.

I do not herein claim the construction of the composite truck-frame, per .96, shown in Figs. 1 to 3, that being the subject-matter of a companion application filed herewith, (File No. 384,) the essential subject-matter of this application being the means of suspending the swinging bolsterand springs on the frame. The brakes are hung on the inside of the wheels, parts of the brake mechanism being indicated in the drawings; but it is unnecessary to describe the same herein.

Having thus described my invention, what I therefore claim as new, and desire to secure by Letters Patent thereon, is-

1. The combination of a truck-frame, the hangers suspended from the sides thereof intermediate the wheels, capable of swinging transversely thereto, the spring-seats on the lower end of said hangers, the coilssprings mounted on said seats, the caps strung ou the hangers above the springs and the bolster directly connected to said cap and supported on said springs, said bolster forming a connection between the hangers.

2. In a truck, the combination of the pedestals, the top bars uniting the same and the bottom bars connected vertically edgewise to the pedestals but twisted so as to lie flat at a point intermediate the pedestals; with hangers suspended from the upper members of the frame between the pedestals and capable of swinging transversely of the frame, the springs carried by said hangers and a bolster directly mounted on the springs substantially as described.

3, In a truck, the combination of the pedestals, the top bars uniting the same and the bottom bars connected vertically edgewise to the pedestals but twisted so as to lie flat at a point intermediate the pedestals; with U- shaped hangers suspended from the upper members of the frame between the pedestals, and capable of swinging transversely of the frame, the coiled springs carried by said hangers and the bolster directly mounted on the springs substantially as described.

4- In a truck, the combination of the'pedestals, a pair of parallel flat bars connected to the upper parts thereof, said bars being arranged vertically ed gewise; with a single flat bar connected to the lower parts of the pedestals having its ends arranged vertically edgewise but twisted intermediate its ends so as to have its central portions flatwise; with the castings secured between the upper bars, the hangers swinging from said castings, the springs directly mounted on said hangers and the bolster directly mounted on said springs,

V for the purpose and substantially as described.

5. In a truck, the combination of the pedestals, a pair of parallel flat bars connected to the upper parts thereof, said bars being arranged vertically edgewise; a single flat bar connected to the lower parts of the pedestals having its ends arranged vertically edgewise buttwisted intermediate its ends so as to have its central portions flatwise; with the hangercastings secured between the upper bars, the U-shaped hangers swinging from said castings, the coiled springs mounted on said hangers and the bolster directly mounted on said springs and forming a tie between the hangers, substantially as described;

6. In a truck, the combination of the pedestals, a pair of parallel flat bars connected to the upper parts thereof, said bars being arranged vertically edgewise, a single fiat bar connected to the lower parts of the pedestals having its ends arranged vertically edgewise but twisted intermediate its ends so as to have its central portions flatwise with the hangercastings secured between the upper members of the side frames and provided with conical openings for the passage of the hangers, the U-shaped hangers suspended from said cas ings capable of swinging transversely of the frame, the springs directly supported on said hangers and the bolster directly supported on said springs, and the transverse tie-bars connecting the side members of the truck-frame on opposite sides of the bolster.

7. The combination of the truck-frame, the

hanger-castings secured to the upper side members thereof, the U-shaped hangers suspended from said castings and capable of swinging transversely of the frame, the pairs of coiled springs strung on the legs of the hangers, a cap-plate strung on the hangers and covering said springs, and the bolster supported on the cap-plates, substantially as described.

8. In a truck, the combination of the pedestals, a pair of parallel fiat bars connected to the upper parts thereof, said bars being arranged vertically edgewise, and a single flat bar connected to the lower parts of the pedestals having its ends arranged vertically edgewise but twisted intermediate its ends so as to have its central portions flatwise; with castings secured between the upper bars of the side frames provided with vertical openings for the passage of spring-hangers, hangers suspended from said castings,thespring-seats on said hangers, the springs mounted on said seats, the cap-plates on said hangers above the springs, and the bolster supported on the cap-plates substantially as described.

9. The combination ofthe frame,thehangercastingssecured to the frame; with U shaped hangers suspended from the castings by means of convex-faced nuts so as to be capable of swinging transversely of the frame, springseats on said hangers, the pairs of springs supported on said seats, the cap-plates strung on the hangers above the springs, and the bolster supported on said cap plates and forming the tie between opposite hangers, all substantially as and for the purpose described,

10. The combination of a truck-frame, the laterally-swinging hangers suspended from the frame between the wheels, the springseats carried by said hangers, the springs on said seats, the caps strung on the hangers above the springs, and the bolster directly resting on said caps and forming the tie between the hangers, substantially as described.

11. The combination of a truck-frame, the hanger-castings each provided with two eyes and attached to the side members ofthe frame, the hangers suspended from the eyes of said castings and adapted to swing laterally of the frame, the springs supported on said hangers,

the spring-caps and the bolster having its end attached to the spring-caps, substantially as described.

12. The combination of the truck-frame, the opposite hangers adapted to swing laterally of the frame, the springs supported on said hangers, the spring-caps strung on the hangers and the bolster having its ends directly connected to said caps, substantially as described.

13. The combination of a truck-frame,with the castings attached to the sides thereof, the U-shaped hangers suspended from said castings and capable of swinging transversely thereto, the spring-seats on the lower end of said hangers, the springs mounted on said seats, the caps strung on said hangers, and the bolster directly supported on said caps.

14. The combination of a truck-frame, with the hangers suspended from the sides thereof, and capable of swinging transversely thereto, the spring-seats on the lower end of saidhangers, the springs strung on the legs of the hangers and mounted on said seats, and the bolster directly supported on said springs, said bol- IIO ster forming a connection between the hangers, substantially as described.

15. The combination with a truck-frame, and hanger castings secured to the sides thereof and provided with vertical openings, a pair of transverse stay-bars connecting the sides of the frame adjacent to the castings, hangers suspended directly from said castings with their upper ends confined in the openings therein and capable of swinging transversely of the frame, the springs directly supported by said hangers and the bolster supported by said springs and guided in its movements by and between said stay-bars, substantially as described.

16. In a truck-frame, the combination of the hangers suspended from the upper side bars thereof intermediate the wheels and capable of swinging transversely of the frame, the spring-seatcasting strung on each hanger, springs mounted on said seats and strung on the legs of the hangers, the cap-plates strung on the hangers above the springs and the bolster supported on said cap-plates, substantially as described.

17. The combination with a truck-frame, of hanger-castings F, F, attached to the upper members of the frame between the pedestals and having vertical openings enlarged at bottom, hangers suspended from said castings and capable of swinging transversely of the frame, the upper ends of said hangers being confined in the openings in the castings, springs carried by said hangers and a bolster carried by said springs, substantially as described.

18. The combination with a truck-frame, of hanger-castings F, F, attached to the upper members of the frame between the pedestals and having vertical openings, hangers suspended from said castings and capable of swinging freely transversely of the frame, the upper ends of said hangers being confined in the openings in the castings, coiled springs carried by said hangers, spring-caps and a bolster mounted on the spring-caps and tying the hangers, substantially as described.

19. The combination with a truck-frame, of hanger-castings F, F, secured to the sides thereof having openings f, f, the transverse stay-bars H, H, connecting the sides of the truck-frame adjacent to said castings, U- shaped hangers I, I, suspended from said castings having their ends confined in openings f, f, and capable of swinging transversely of the frame, springs supported on said hangers, and the bolster supported on said caps and guided in its swinging "movements by and between said stay-bars, substantially as described.

20. The combination of a truck-frame having a pair of transverse stay-bars H, H, connecting its upper side members and hangercastings F, F, secured to the side members opposite the ends of said stay-bars, the U- shaped hangers I depending from said castings, the spring-seats on the hangers, the springs on the seats, the spring-caps, and the bolster mounted on the spring-caps and lying between and guided by said stay-bars for the purpose and substantially as described.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

JOHN TAYLOR.

In presence of- FRANK SHRAUDER, W. S. HOPKINS. 

